4. Printed matter
  5. Having revealable concealed information, fraud preventer or...
  6. Utilizing electromagnetic radiation

Masanori Umeya

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Circular polarization controlling optical element and method...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate

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Circularly polarizing element having multiple low...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate

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Fabrication process for cholesteric liquid crystal media...

Optical: systems and elements – Holographic system or element – Authentication
Reexamination Certificate

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Indicator for indicating authenticity

Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing electromagnetic radiation
Reexamination Certificate

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Liquid crystalline transfer sheet and process of producing...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
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Profile ID: LFUS-PAI-P-2346685

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